It's hard to remember that most of the models you see on the catwalk really are that age—though easier since now, thanks to Twitter, they've taken to broadcasting their prom pictures to the world. Last year it was Karlie Kloss, who wore a silver Oscar de la Renta. This time around it's Lindsey Wixson via Wichita, Kansas. The blonde, who's known for her cartoon-like lips and the miniature gap between her teeth, donned a cobalt blue Jason Wu dress with white slingback sandals. Wu made it just for her, but it wouldn't look out of place on his spring catwalk.

If you're going to wear a custom-made designer dress to prom, Wu's a pretty good choice. But who would you pick? And how long until a model chooses something edgy a la Alex Wang or Altuzarra? Or more importantly, who'll Tweet it first?